7w5d and soo sick. Need advise

Okay so beginning of week 6 hit me like a brick wall and ive had what i consider(this is my 1st pregnancy so hard to tell) severe morning sickness.

Started as extreme dizziness accompanied with nausea and multiple vomit sessions. Tried changing diet, didnt help, ended up making me not eat or drink. Doc gave me reglan, didnt seem to work, felt nauseous still and still threw up often. Now im on zofran and throw up alot less but i think thats in part because im still not eating often. Maybe 2 times a day. Up until recently i cant tell what "hungry" is because the nausea is so strong. Sit up=nausea, gas/bloat=nausea, hunger=nausea, full= nausea, need to poop=nausea consipated=nausea. I dont know up from down! I cant drink water at all because it makes me puke even on zofran and it gives me heart burn and cramps. I havent been to work in days. Doc wants to see me if zofran doesnt work, but i cant tell if it is??? Is any of this normal? Should i get checked for HG?? Im at a loss.

Also i havent been taking my prenatals just from being afraid of throwing up or becoming even more consipated. TMI but i am not pooping every day. Maybe every 2-3 days or more...